S11 - The Paroxysmal eruptive sequences of Mt Etna between 2020 and 2021
- Giuseppe Salerno *, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania Osservatorio Etneo, Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.
- Ornella Cocina, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania Osservatorio Etneo, Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.
- Salvatore Gambino, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania Osservatorio Etneo, Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.
- Antonio Paonita, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.
- *Corresponding
Lava fountain is a common type eruptive behavior at basaltic volcanoes around the world. Also known as Hawaiian eruptions for the typical activity of Kilauea volcano, this eruptive style is featured by vertical jets of lava rising hundred meters above the ground coupled with lava flows and tall eruptive plumes columns of gas and particles dispersing several kilometers away from the vent. With more than 200 lava fountains in the last 30 years, lava fountaining is an ordinary and well documented eruptive behavior at Mt Etna. More recently, between December 2020 and October 2021, Mt Etna experienced two long sequences of 53 short-living lava fountain episodes between December 2020 and March 2021, and April to October 2021. Lava and ash ejected caught the eye of the world but severely affected people living in surrounding of the volcano due to the pyroclastic ash-fall out. The eruptive sequence was preceded by unrest in the geophysical and geochemical monitored parameters, highlighting the up rise of fresh-volatile rich magma from the depth to the shallow plumbing system of the volcano since the summer of 2020. This session focuses on this eruptive sequence, from field and instrumental observations to modeling and review on associated hazards.